Tubular lantern.



E. J. McDADE & T. A. GLENDE.

TUBULAR LANTERN.

APPLICATION FILED SEPT. 2, I915.

'Patenfed Oct. 24, 1916.

IFi JL Ill llil on EDWARD J. 'MnDADE AND THEODORE A. GLENDE, G13ROCHESTER, NEW? YORK, ASSIGN- Gfi TU PRKTGHARI SZUAM?INGCiIlIVIRtiN'Ei', OF ROCHESTER, NEW] YORK, A GQBPOEA- TION OF NEW YORK.

Application filed ficjotcniher it, 1815.

To all whom it rnogtcon gem Be it known that we, llnuuun J". fl liclhnnand THEODORE Ax-Ghnrqnn, citizens of the United States, and residents clRochester, in the county of lrjhiinroe and. tiltate of New York, haveinvented, certain new ancl useful Improvements in Tubular Lanterns, ofwhich the following is a specification.

The object of this invention is to provide a tubular lantern. withimproved means for securing the air-tuhes and; other parts to theoil-font, so as not only to provich: strong and (lurahle connectionsbetween these parts, but also, in the preferred emhoclinut of theinvention, to dispense with the use (it solder for this purpose.

The foregoing object is attained by the use of connecting means comprisng, particularly, a plate or sheetanetal member which lies on top of theoil-font and is con-- nected with the oihfont. on the one hand, and onthe other hand. with. the air-tubes or other parts which are to beattached to the oihtont. Zln order that seci'lre connection may beformed, without the necessity for using solder, the plate just referredto is preteral'ily ettz chetl to the oilatont by 1110:1118 of amechanical lock or joint. while it is preferably attached to theair-tubes and other parts by conneeting-Inemhers which pass over theseparts, and of which the ends pass through opei-iings in the plate andare seated between. this plate and the top of the oil-font.

{lther features of the invention will he set forth in connection withthe following description of the Tnreterred embodiment of the invention.

In the accompanying drawings :Fignrc 1 is a front-elevation of a tubularlantern embodying the present invention; Fig. 2 is a vertical section,on. theline 22 in Fig. 1, of the lower part of the lantern, on a largerscale than Fig. 1; Fig. 3 is a section on the line 3 3 in Fig. 1,looking from right to left in the latter figure; and Fig. 4. is afront-elevation of a. portion of the lantern, showing, In letail, theconnection between one of the air-tubes and the oil-font.

The invention is illustrated as einhmlierl in a tubular lantern of whichthe general form and construction are well known. ".l he oil-font 10, asshown particularly in 2, is of the usual form, except for the tact thatis is provided, near the top, with an annular Specification of LettersPatent.

TUBULAR LAIWIEFJEIQ Patented @ct. 24L, Lilith.

Serial TlTo. $8,761.

recess or groove 11, which is preferably formed by rolling; thesheet-metal after it has been drawn to term the body of the oil-font.(tn important feature of the present invention resides in a disk orplate 12 of sheet-metal. will-e1 lies on top of the oilt'ont. This platehe a tllptlllklllig periphcra flange 13, of which the lower is swagec'lor bent into the recess 11, so that the plate is securely fixed, at itsmargin, to the oil- :lont by an interlocking joint, and without thenecessity of solder; The plate is perforated to receive the usualburner-cup 1 L, llllli this burner-cup thus serves as further means ofattachment between the plate 12 and the oiltont, in addition toperforming the usual function of securing together the oil-font and theair-chamber 15.

The air-tubes ll; of the lantern are of the usual form except tor theirlower enclportions. 'lhese riul-p0rli0l1s are termed as shown in Fig.2-), with flat lower surfaces which rest upon the upper surface of theplate l2.- The air-tubes are secured to the plate by means oil'asteuirig-members 17 in the form of strips of sheet-metal, thesemornhers bring bent to conform thenrto the tuhes aml haying end-portions1% anti 19 which oxtmul (lounuardly throug'l'l slots in the plate l2.azul are then hunt outwardlyso as to lie between the plate and the topof the oil-font. The sharp hentlsin these i31'1(lport-ions tend toprevent them from being! withdrawn from the described position, but toincrease the security of the connection the enil-portious are providedwith ribs or eorrugntions, which enter corresponding corrugations 20 inthe plate 1:2, adjacent to the openings through which theconnectinginemheigll' passes, as shown in Fig. 3. The extremities of theair-tubes may he fixed to the airazhamhcr l?) in the usual. manner, andthe tubes are provided with outwardly projecting: beads or ribs 21, 22at the edges of the connectiug-mcn'ibers 17, so as to prevent the tuhtsfrom slitting within the members 1'7, and also to 1 rocluce a neatfinish. and conceal the raw edges oi. the connecting inen'ihers.

The plate 12 serves not only as a part of the means for connecting theair-tubes with the oil-font. hut also as a part of he means forsupporting the globe-lifter. This lifter is shown as comprising acam-like arm 23 at a well known form, which cotlperates with a crankedwire 24: by which the globeplate 25 is raised. The arm 23 is formed fromwire continuously with a short shaft 26, and this shaft has its bearingin a sleeve 27. The sleeve is formed by bending a strip of slreetanetal,and the ends of this strip are passed downwardly through one of theopenings in the plate 12 alongside the air-tube, and are arranged to liebetween the plate and the adjacent end 19 of the connectingmember 17, asshown in The structure above described not only provides a strong andrigid form of connection between the oil-font and the airtuhes and otherparts of the lantern, but it also facilitates the construction andassembling of the lantern, and avoids the injury to the finishedappearance of the lantern which results from the usual operation ofsoldering the air-tubes and other parts to the oil-font. The tin-plateor other sheet-metal of which the lantern is constructed has a brightand clean appearance which is not destroyed by the mechanical operationsof assembling the various parts, but where the assembling is completedby a soldering operation the metal is unavoidably soiled and tarnished,and thus the appearance of the lantern is impaired unless a special andexpensive cleaning or finishing operation is afterward performed uponit. The present construction avoids this disadvantage by thesubstitution of mechanical operations for soldering, and it alsoproduces a structure of more permanent strength, since soldered jointsare liable, as is well known, to yield and break when subjected torepeated strains. Another. advantage. of the use of the connecting-plate12 resides in the fact that letters or other devices may be stamped uponthis plate, to take the place of those ordinarily stamped upon the topof the oil-font. In stamping such devices in the oil-font it has beenfound that if the impressions are deep or sharp, the tin-plate of whichtubular lanterns are ordinarily made is ruptured by the dies, so thatleakage occurs from the oil-font. .By stamping the devices in the plate12, however, injury to the oil-font is avoided, and the impressions maybe made as sharp and deep as is desired.

1. In a tubular lantern, the combination, with an oil-font andair-tubes, of means, for connecting the oil-font with the air-tubes,comprising a platelying on top of the oilfont and tixed thereto, andmembers interlocked with said plate and passing over the lower ends ofthe air-tubes.

2. In a tubular lantern, the combination of an oil-font provided with anannular lateral recess; parts associated witli'the oilfont: and means,for connecting said parts with the oil-font, comprising a plate lying ontop of the oil-font and extending also, at its periphery, into saidrecess, and fastening-members passing OVGl said parts and having theirends seated between the plate and the oil-font. v

3. In a tubular'lantern, the combination, with an oil-tent and a partlocated above the oil-font, of a plate lying on top of the oil-font andbelow said part, the plate being fixed to the oil-font; and afasteningmember extending over said part and with its ends, passingthrough theiplate and lying between the plate and the;oil-font.-

at. In a tubular lantern, the combination, with an oil-font and a partlocated above the oil-font, of a plate lying on top of the oil-font andbelow said part, the plate being fixed to the oil-font; and afasteningmember extending over said part and with its ends passingthrough thcplate and lying between the plate and the oil-font, said endsand the adjacent part of the plate being corrugated ,to' resistwithdrawal of saidends. J

EDWARD J. MoDADE. THEODORE A. GLENDE.

